Signor to george westing house



(No Model.)

W. STANLEY, Jr,

INDUGTION COIL. I No. 349,617. Patented Sept. 21, 1886.

' Wit names SWUMOZ 1. 9% M Mam Wazzzm smile UNITED STATES PATENT OEEicE.

XVIL'LIAM STANLEY, JR, OF GREAT BARRINGTON, MASSACHUSETTS, AS- SIGJOR TOGEORGE \VESTTNGHOUSE, JR, OF PlWISBURG, PA.

lNDUCTlON-COIL.

SPECIFICATION forming part of Letters Patent No. 349,617,61ateclSeptember 21, 1886.

Application tiled February 10, 1886. Serial No. 191,106.

To (LZZ whom, it may concern:

3e it known that I, \VILLIAM STANLEY, Jr., a citizen of the UnitedStates, residing in Great Barrington, in the county of Berkshire and 5State ol' Massau-husetts, have invented certain new and uselulImprovements in Induction- Coils, of which the following is aspecification. My invention relates to the class of apparat us employedfor converting electric energy from currents of a given potential tocurrents of a different potential or different quantity.

In the conversion of electrical energy from currents of a lower to ahigher potential, and vice versa. by means of induction-coils, it is [5desirable that the quantity of iron acted. upon by the currents in theprimary circuit, and in turn reacting upon the coils in the secondarycircuit, should be as great as possible, andthat the iron itself shouldbe divided into thin lamime or plates, rather than united in a solidmass, and it is also desirable that the parts be so organized as torender the construction of the coil as simple as possible.

The object ot' the. invention is, theret'ore, to

23 provide a form of inductioircoil in which the magnetizable portion isformed of thin plates of softiron adapted to support the primary andsecondary conductors in such mannerthat they shall be as nearly aspossible surrounded by magnetic material, and shall be so located thatthe currents traversing the primary shall be expended to the bestadvantage in magnet izing the iron, and thatthe magnetization anddemagnetization of the iron shall be utilized to the best advantage inestablishing induced currents in the seeondaryeoils.

The invention consists in winding the primary and secondary conductorsupon a suitable form, which may with advantage be 0c .10 tagonal, andmounting upon the coil or core of wires thus formed by the primary andsecondary conductors annular disks or rings of magnetic material. Thesedisks are applied by being formed with central openings of such size asto receive the wire, and they are cut; open upon one side. By springingthe two ends thus formed laterally they are slipped over the core ofWire, and thus caused to surround the conductors.

In another application of even date here with, Serial. No. 191,405,there is described an (No model.)

inductorium resembling in some ot' its features that describml andclaimed herein.

in the accompanying drawings, Figure l is a plan view of aninduction-coil constructed upon this n-inciple. and Fig. 2 is across-see tion ot'a portion of the same.

Referring to the figures, a and. a represent the terminals of theprimary ('Olltllltfl'm' A, and b and I) the terminals of the secondaryconductor B. These conductors are wound upon a suitable torming blockinto an annulus, which may be of circular. or, as shown in the drawings.of an octagonal form. The ends or the conductors are secured to suitablebinding-posts. The conductors having been thus termed, the iron to beacted upon by the primary conductor. and in turn to act upon thesecondary coils, is placed in position. It con sists of a series ofdisks, 0 c, which are separately formed. Each disk has an openingthrough the center. as shown at d, ot'such size as to admit the core ofwire, and a slot or opening (1, is cut from. the center to theperiphery. By springing the ends 6 and e aside or in opposite directionsthe disks may be placed,one at a time,u n)n the coils. They arepreferably separated from each other by non magnetic materiahforthepurpose ofrendering the coil capable of more rapid magnetization anddemagnctization.

I claim as my invention 1. The combination, substantiallyashereinbet'ore set i'ortli,with the primary and secondary conductors ofan induction-coil wound to form an annulus, of a series 01' slottedplates of soft iron, through \vhichthe conductors extend.

2. The combination, substantially as hereinbefore set forth, of a seriesof magneticallyseparated disks or plates of sot'tiron, each hav ing aradial slot, and primary and secondary conductors extending axiallythrough the same, substantially as described.

In. testimony whereof I have hereunto subscribed my name this 28th dayof January, A. D. 1886.

\VILLIAM STANLEY, JR.

W'itnesses:

DANL. W. EDcEoonn, CHARLES A. TERRY.

